Percent Review

Vocabulary

100

A ratio that compares a number to 100

percent

200

the smallest number of all the common multiples of the denominators

Least Common Denominator

300

 an equation where a percent is equal to an equivalent ratio

Percent Proportion

400

An equation that states two ratios are equivalent

Proportion

500

What is a rational number?

A number is rational if it can be written as a fraction

Fraction/Decimal/Percent

100

Express 1/2 as a percent

50%

200

Express 9% as a decimal

0.09

300

Express 320% as a mixed number in simplest form

3 2/10

400

Write 88% as a fraction in simplest form

22/25

500

Express 0.07% as a decimal and a fraction

0.0007 and 7/10,000

Percent of a Quantity

100

20% of 180

³⁶

200

48% of 725

348

300

4% of 200

8

400

7.5% of 600

45

500

150% of 220

330

Word Problems

100

Mrs. Benitez earns $3,400 every month. She spends 25% of her earnings on rent. How much does she spend on rent?

$850

200

Of the 800 people at a concert, 42% of them are adults. How many adults are at the concert?

336 Adults

300

A table costs $350. There is also a sales tax of 7%. How much will the tax cost?

$24.50

400

Howard opens a savings account with a deposit of $800. The bank will pay him 3% interest per year. How much interest will he receive at the end of 2 years?

$48

500

The amount of water in a bottle is reduced by 85% to 120 milliliters. How much water was originally in the bottle?

800mL